type TVgcanvasLineJoin string
const (
  VGCANVAS_LINE_JOIN_ROUND string = C.VGCANVAS_LINE_JOIN_ROUND
  VGCANVAS_LINE_JOIN_BEVEL string = C.VGCANVAS_LINE_JOIN_BEVEL
  VGCANVAS_LINE_JOIN_MITTER string = C.VGCANVAS_LINE_JOIN_MITTER
)
